Counter-guard for heel-trimming machines.



A. MODOWELL.

COUNTER GUARD FOR HEEL TRIMMING MACHINES. 7

APPLICATION FILED AUG. 13, 1912.

1,060,690, Patented May 6, 1913.

COLUMBIA PLANOGRAPH c0.,wAsHlNu'r0N D c FTQ ' ALEXANDER MCDOWELL, OFLYNN, MASSACHUSETTS.

COUNTER-GUARD FOR HEEL-TR'IMMING MACHINES.

Application filed August 13, 1912.

To all whom it may concern Be it known that I, ALEXANDER McDow- ELL, acitizen of the United States, and resident of Lynn, in the county ofEssex and State of Massachusetts, have invented certain new and usefulImprovements in Counter-Guards for Heel-Trimming Machines, of which thefollowing is a specification.

This invention relates to an improved guard adapted to be applied tomachines used for cutting or shaving the edges of boot and shoe heels.

The object of the invention is to produce an improved device of thisnature by which the guard is guided in correct relation with the cutterin moving longitudinally thereof, and by which adjustment may be madefor the accommodation of heels of different styles.

Referring to the drawings in which I have illustrated one of themechanisms in which the principles of my invention may be embodied,Figure 1 is a plan view of the guard showing the same in its relation tothe counter of a heel trimming machine. Fig. 2 is an end view of thesame. Fig. 3 is a sectional view on line 3-3 of Fig. 2. Fig. at is adetail section of the guard proper. Fig. 5 is a view showing amodification.

The same reference characters indicate the same parts in all thefigures.

Referring to the drawings, 1 represents a plate or bracket adapted to befastened on the bed or frame of a heel trimming machine and forming thesupport for my improved cutter guide.

2 represents a stud adjustably clamped in a slot 3 in the bracket 1 asshown in 3. This stud passes through the bracket and has a nut threadedupon one end and adapted to bear on the under side of the bracket, suchnut causing a shoulder or sleeve on the stud to be clamped against thetop face of the bracket. Pivoted on the stud is an arm 4 which issubstantially U-shaped having a part i bent down and crossing the planeof the bracket 1, and a short end part 4 bent back underneath, beingshown in Fig. 3. Passing between the upper arm and the end 1 is a pivotpin 5 whereon is pivoted a frame, consisting of a cross bar 6 and sidebars 7, 8, of which the cross bar is bored out to have a bearing on thepin. The frame arms 7, 8 project away from the bracket and between themis contained a counter guard Specification of Letters Patent.

Patented May 6, 1913.

Serial No. 714,816.

holder, the same consisting of a ring 9 pivoted at diametricallyopposite points on pivots 11 to the arms 7, 8 and having extensions 12running from the ring near the pivots, parallel to the axis of the ringand being brought together and oined at 13 at a considerable distancefrom the ring. The counter guard proper is shown at 14;, being a shieldfastened to the ring 9 and having a longitudinal curvature concentricwith the ring and in transverse contour having an offset 14 where itsprings away from the ring, and on its edge the lip lt adapted to enterthe crease between the heel seat of a shoe and the heel. Also mountedupon the bracket 1 is a slide 15 which is connected adjustably thereto'by a bolt 16 passing through a slot 17 in the slide and screwed intothe bracket. Said slide has a lip on its outer side which overlies theend of the bracket and so serves as a guide. On the end of the slide 15is a tubular hearing or guideway 18 through which passes a rod 19 havinga flattened end which is contained between two ears 20 projecting fromthe rear cross bar 13 of the counter guard holder. A pin 21 passesthrough the ears and the rod, connecting the same together.

The cutter is shown at 22. It is mounted upon a shaft 23 and has such arelation to the counter guard, the latter being placed accordingly, thatit is partially covered by the counter guard. The shaft which carriesthe cutter extends somewhat beyond the same into the counter guardholder and on the extension there is mounted a guide 24 which isconveniently a sleeve or bushing, tightly but preferably removablyfitted upon the shaft. The counter guard holder carries a foot 25arranged to bear on the guide 24, and being carried by an arm or plate26 which is fastened to a saddle 28 having ears 29 connected by a pivotpin 30 with the extensions 12 of the guard holder. At one side of thesaddle an adjusting screw 31 passes through a slot in the arm 26 andinto the cross piece 13, while at the other side of the saddle anotherscrew 32 passes through a slot in the arm and into a saddle 33 which hassimilar ears pivoted at 3 1 to the respective extensions or side bars12.

A spring 35 is coiled about the stud 2 and is engaged with a fixed pin36 passing through the stud and with a pin 37 on the arm 4. The tendencyof this spring is to swing the arm outward, holding the counter thetendency is to move the entire collection of parts which support thecounter guard toward the right with respect to Fig. 1. This tendency ischecked and movement in this direction stopped yieldingly by means of abuffer spring 1O surrounding the rod 19 between the bearing 18 and ahead l1 on the end of the rod.

From the foregoing description of construction, it will be seen that thecounter guard may be moved back and forth longitudinally of the cutter,and in so moving it is guided by the engagement of the foot with theguide bushing 24, and by the hearing 18. The frame 7, 8 and arm 4 canswing to permit this movement of the guard. The guide limits theapproach of the heel being acted upon toward the cutter and consequentlythe shape of the guide 2 1 affects the path in which the guard moves andthereby controls the shape given to the heel. One guide 2 1 may besubstituted for another according to the style of heel operated upon.This governs the transverse shape, that is, the form from top to bottomof the heel, while the amount of uniform extension of the heel isgoverned by the adjustment of the foot 25 by the screws 31 and 32.

In Fig. 4 I have shown a modified form of guide 24 which is somewhatflaring at a distance from the cutter, being designed in this manner toleave a bulge or bead in the heel near the seat thereof. This bulge isleft so that when the heel seat cutter is used for a final shavingoperation, a clean cut may be produced at the upper edge of the heelnearest to the seat, and to avoid any danger of the roughing-cutterremoving too much of the stock of the heel and leaving it rough near theseat.

The guard is held at all times, when not pressed toward the cutter by ashoe held in the hands of the operator and pushed against the guard, ata greater distance radially away from the cutter than it lies when inuse, such distance being governed by the adjustable stop 391. Thisallows a large untrimmed heel to be seated against the counter guardwithout coming into contact with the cutter before the cutting iscommenced. A means additional or alternative to the spring 35 for thusholding the guard outward is indicated as a leaf spring &2 connected tothe outer edge of the bracket 1 and bearing on a part of the guardholder. Such leaf spring is not always necessary, and may be omittedwhen the spring 35 is present. A further function of the arm 392, whichcarries stop 391, is to support the swinging arm 4 and relieve crampingof the hub thereof on the pivot stud 2. Adjustments of said stud 2 areprovided for according to the differences in size and shape of the heelsto be trimmed, so that the guard may be moved through the full rangenecessary without causing more than the minimum amount of angular motionof arm 4:. Such adjustment approximately in the direction of the axis ofthe cutter is made by movement of the stud along the slot 3, whileadjustments transversely of this one are made by turning the stud aboutits axis. That part of the stud which is contained in the slot iseccentric to that part on which the arm 4 is mounted; hence, by turningthe stud the arm may be moved nearer to or farther from the axis of thecutter. If the part of the stud in the slot is rectangular in section,as here shown, the stud may be thus turned after being first removedfrom the slot.

Another improvement claimed as a part of this invention resides in theguard proper. Within the lip 14L of the guard there is a groove Mcapable of receiving the blades of a rand trimmer when such is used inconnection with the cutter, or when the guard is used with a randtrimmer alone; and the guard also has notches in the lip (as shown bestin Fig. 1). These notches act as teeth to catch fibers on the rough edgeof the heel seat and hold such fibers so that the cutter may sever them,and also to cut and break away any bits of glue adhering to the leather,or other excrescences, leaving the edge of the heel seat smooth.

I claim:

1. The combination with a heel trimming cutter, of a counterguardmovable longitudinally of the cutter beside the same, and cooperatingadjustable guiding means connected with the cutter and with the guard,respectively, for controlling the path in which said guard thus moves.

2. The combination with a heel trimming cutter of a guide memberconnected with said cutter, a guard lying beside the cutter, and amovable support for said guard adapted to travel therewithlongitudinally of the cutter and having co-mplemental means cooperatingwith said guide to control the path in which the guard moves. 7

3. The combination with a heel trimming cutter of a projection at oneend of the cutter co-axial therewith, a counterguard lying beside thecutter and supported with provision for moving longitudinally thereof,and guiding means connected with. said guard and engaging with thesurface of said projection for controlling the path in which the guardthus moves.

4. A counterguard including a holder, a guard proper secured to saidholder, means for supporting said holder with. provision forlongitudinal movement, an arm movably mounted on said holder extendinglongitudinally thereof and having a foot, a guide with which said footcooperates, and means for adjusting said arm transversely of its lengthto shift the Positions of the foot toward or from the longitudinal axisof the holder.

5. In combination with a counter guard, a movable holder therefor, and afoot adjust-ably connected to said holder, a rotatable cutter having itsaxis in the line of movement of the guard and partially surrounded bythe latter, and a guide element connected to the cutter projecting intothe guard holder in position to be engaged by said foot.

6. The combination with a trimming cutter of a counter .guard, a holderfor said guard arranged to support the same in a posit-ion partiallysurrounding the cutter, means for supporting said holder with provisionfor movement thereof and of the guard both axially and radially of thecutter, and means constructed and arranged to press the guard radiallyaway from the cutter.

7. The combination with a heel trimming cutter arranged to rotate, of aguide member connected to the cutter and coaxial therewith, a counterguard adapted to extend to some extent around and over the cutter, aholder on which said guard is mounted with provision for movinglongitudinally of the cutter axis and also transversely of such axis, afoot adjustably connected to said holder and arranged to bear upon saidguide whereby the latter is caused to govern the path in which the guardmoves, and means normally acting to hold the guard away from the cutterand the foot away from the guide.

8. In a heel trimming machine, the combination with a heel trimmingcutter of a bracket adapted to be mounted on such machine in a definiterelation to the cutter, a stud secured on said bracket, an arm pivotallymounted on the stud extending therefrom approximately parallel to thecutter axis, a supporting arm secured to the first named arm andextending therefrom transversely of the cutter axis to a point adjacentto one end of the cutter, a guard holder pivotally connected to saidsecond named arm, a counter guard secured to said holder at the endthereof next to the cutter and so positioned and formed as to extendover the cutter, complemental guiding members con nected to the cutterand guard holder, re

spectively, and arranged to make contact for governing the path in whichthe guard may move longitudinally of the cutter, a spring connected withthe first named arm with the pivot stud arranged to move said arm in thedirection to separate the guard from the cutter, and a stop mounted onsaid bracket in position to engage said first named arm and limit suchmovement thereof.

9. In a heel trimming machine, the combination with a heel trimmingcutter of a bracket adapted to be mounted on such machine in a definiterelation to the cutter, a stud secured on said bracket, an arm pivotallymounted on the stud and extending therefrom approximately parallel tothe cutter axis, a supporting arm secured to the first named arm andextending therefrom transversely of the cutter axis to a point at jacentto one end of the cutter, a guard holder pivotally connected to saidsecond named arm, a counter guard secured to said holder at the endthereof next to the cutter and so positioned and formed as to extendover the cutter, complemental guiding members connected to the cutterand guard holder, respectively, and arranged to make cont-act forgoverning the path in which the guard may move longitudinally of thecutter, a spring connected with the first named arm and with the pivotstud arranged to move said arm in the direction to separate the guardfrom the cutter, an arm secured to said bracket lying under the firstnamed arm and supporting the same, and a stop adjustably secured to saidlast named arm in position to engage the first named arm and limit thespring-induced movement thereof.

10. In combination with a counter guard, a holder comprising a ring towhich said guard is secured, arms extending from said ring in thedirection of the axis thereof, a slide connected to said arms at a pointdistant from said ring, a guide in which said slide is contained withprovision for movement longitudinally, the slide extending in thedirection of the axis of said ring, an arm carrying said guide, abracket to which said arm is connected with provision for movementtransversely of the aforesaid axis, a stud mountedon said bracket, aswinging arm pivotally mounted on said stud and extending approximatelyparallel to the aforesaid axis, a link pivoted to said arm extendingtransversely of such axis to a point adjacent to the guardholding ring,a pivot connecting said link to said ring, and a spring connected withthe bracket and the guard holder arranged to exert its force so astorernove the guard holder away from the side guide.

11. A counter guard curved to conform with the path of rotation of arotary cutter, said guard having a lip adapted to lie about the seatedge of a heel so that the cutter sever such fibers. y

In testimony whereof I have afiixed my signature, in presence of twoWitnesses.

ALEXANDER MCDOWELL. WVitnesses:

ALBERT L. HoWEs, D. F. MACAULEY.

the cutter, and the lip having notches for removing excrescences on theheel seat edge of a shoe.

12. In combination With a rotary heel 5 trimming cutter, a counter guardhaving a lip formed and mounted to surround a por tion of the cutter inclose proximity thereto, said lip having means for holding fibers on mayCopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

